T The purpose of this research is to find an X field development scenario, which will be developed. To determine the scenario, field deliverability calculation for the long term need to be done. Outcome that obtained from the results of the calculation are oftendubious, especially in the field that will be developed, due to data limitations. Therefore it is necessary to have results comparison of one method of calculation with another calculation method. The results of exploration drilling X field with the name of X-1 wells in 1997 wasthe discovery of a gas reservoir, in the Upper and Middle Arang layer. Three DST performed on Middle Arang Formation, the data from this test will be analyzed todetermine the characteristics and well deliverability. Results of this analysis are considered to represent two other wells drilling will be carried out later.In this research analyzed of the Drill Stem Test (DST) X-1 results will be conducted to determine the characteristics of the well. The analysis results are used as the basis forcalculation of deliverability field.The purpose of this research is to obtained conventionally X field deliverability as a comparison with other calculation methods that aligned with the results.